// Internal developer documentation -- will not show up in API docs A custom drag proxy implementation specific to Ext.Panels. This class is primarily used internally for the Panel's drag drop implementation, and should never need to be created directly.

activeOnTop : Boolean
True to swap the position of each panel as it is expanded so that it becomes the first item in the container, false to keep the panels in the rendered order. This is NOT compatible with "animate:true" (defaults to false).
animate : Boolean
True to slide the contained panels open and closed during expand/collapse using animation, false to open and close directly with no animation (defaults to false). Note: to defer to the specific config setting of each contained panel for this property, set this to undefined at the layout level.